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iio: fix error return code 

Convert a zero return value on error to a negative one, as returned
elsewhere in the function.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
(
if@p1 (\(ret < 0\|ret != 0\))
 { ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
    when != &ret
*if(...)
{
  ... when != ret = e2
      when forall
 return ret;
}

// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Julia Lawall 2014-06-08 21:12:00 +01:00 committed by Jonathan Cameron
parent d7b79519fa
commit 889c558095
1 changed files with 6 additions and 2 deletions
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8
drivers/iio/adc/xilinx-xadc-core.c
View File

@ -1201,12 +1201,16 @@ static int xadc_probe(struct platform_device *pdev)
goto err_device_free;
xadc->convst_trigger = xadc_alloc_trigger(indio_dev, "convst");
if (IS_ERR(xadc->convst_trigger))
if (IS_ERR(xadc->convst_trigger)) {
ret = PTR_ERR(xadc->convst_trigger);
goto err_triggered_buffer_cleanup;
}
xadc->samplerate_trigger = xadc_alloc_trigger(indio_dev,
"samplerate");
if (IS_ERR(xadc->samplerate_trigger))
if (IS_ERR(xadc->samplerate_trigger)) {
ret = PTR_ERR(xadc->samplerate_trigger);
goto err_free_convst_trigger;
}
}
xadc->clk = devm_clk_get(&pdev->dev, NULL);